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#
# collect_indices.rb
#
module Puppet::Parser::Functions
newfunction(:collect_indices, :type => :rvalue, :doc => <<-EOS
EOS
) do |arguments|
raise(Puppet::ParseError, "Wrong number of arguments " +
"given (#{arguments.size} for 2)") if arguments.size < 2
array = arguments.shift
if not array.is_a?(Array)
raise(Puppet::ParseError, 'Requires an array to work with')
end
indices = *arguments # Get them all ... Pokemon ...
if not indices or indices.empty?
raise(Puppet::ParseError, 'You must provide indices to collect')
end
# In Puppet numbers are often string-encoded ...
array = indices.collect { |i| array[i.to_i] }.compact
return array
end
end
# vim: set ts=2 sw=2 et :
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